messagePending(Pointer.Void htaskCallee,
UInt32 dwTickCount,
UInt32 dwPendingType)
This client-based method is called by COM when a Windows message
appears in a COM application's message queue while the application
is waiting for a reply to a remote call.

retryRejectedCall(Pointer.Void htaskCallee,
UInt32 dwTickCount,
UInt32 dwRejectType)
This client-based method gives the application an opportunity
to display a dialog box so the user can retry or cancel the call,
or switch to the task identified by threadIDCallee.

messagePending

This client-based method is called by COM when a Windows message
appears in a COM application's message queue while the application
is waiting for a reply to a remote call.

Handling input while waiting for an outgoing call to finish can
introduce complications. The application should determine whether
to process the message without interrupting the call, continue
waiting, or cancel the operation.